RHSA-2012:1180 - Security Advisory

Topic

Updated gimp packages that fix three security issues are now available for
Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having moderate
security impact. Common Vulnerability Scoring System (CVSS) base scores,
which give detailed severity ratings, are available for each vulnerability
from the CVE links in the References section.

Description

The GIMP (GNU Image Manipulation Program) is an image composition and
editing program.

An integer overflow flaw, leading to a heap-based buffer overflow, was
found in the GIMP's GIF image format plug-in. An attacker could create a
specially-crafted GIF image file that, when opened, could cause the GIF
plug-in to crash or, potentially, execute arbitrary code with the
privileges of the user running the GIMP. (CVE-2012-3481)

A heap-based buffer overflow flaw was found in the Lempel-Ziv-Welch (LZW)
decompression algorithm implementation used by the GIMP's GIF image format
plug-in. An attacker could create a specially-crafted GIF image file that,
when opened, could cause the GIF plug-in to crash or, potentially, execute
arbitrary code with the privileges of the user running the GIMP.
(CVE-2011-2896)

A heap-based buffer overflow flaw was found in the GIMP's KiSS CEL file
format plug-in. An attacker could create a specially-crafted KiSS palette
file that, when opened, could cause the CEL plug-in to crash or,
potentially, execute arbitrary code with the privileges of the user running
the GIMP. (CVE-2012-3403)

Red Hat would like to thank Matthias Weckbecker of the SUSE Security Team
for reporting the CVE-2012-3481 issue.

Users of the GIMP are advised to upgrade to these updated packages, which
contain backported patches to correct these issues. The GIMP must be
restarted for the update to take effect.

Solution

Before applying this update, make sure all previously-released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/knowledge/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.3 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.3 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux Desktop 6 x86_64
• Red Hat Enterprise Linux Desktop 6 i386
• Red Hat Enterprise Linux for IBM z Systems 6 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 6.3 s390x
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 6.3 ppc64
• Red Hat Enterprise Linux Server from RHUI 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.3 x86_64
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.3 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension (for IBM z Systems) 6 s390x

Fixes

• BZ - 727800 - CVE-2011-2896 David Koblas' GIF decoder LZW decoder buffer overflow
• BZ - 839020 - CVE-2012-3403 gimp (CEL plug-in): heap buffer overflow when loading external palette files
• BZ - 847303 - CVE-2012-3481 Gimp (GIF plug-in): Heap-based buffer overflow by loading certain GIF images

CVEs

• CVE-2011-2896
• CVE-2012-3403
• CVE-2012-3481

References

• https://access.redhat.com/security/updates/classification/#moderate